/* ═══════════════════════════════════════════
   EVANGELOS PORTFOLIO 2026 — Design System
   ═══════════════════════════════════════════ */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;700&display=swap');

:root {
  --bg-primary: #06060b;
  --bg-secondary: #0c0c16;
  --bg-card: rgba(14, 14, 26, 0.65);
  --bg-glass: rgba(255,255,255,0.04);
  --border-glass: rgba(255,255,255,0.08);
  --text-primary: #f0f0f5;
  --text-secondary: rgba(240,240,245,0.6);
  --text-muted: rgba(240,240,245,0.35);
  --accent-cyan: #00e5ff;
  --accent-purple: #a855f7;
  --accent-pink: #ec4899;
  --accent-green: #22d3ee;
  --glow-cyan: 0 0 30px rgba(0,229,255,0.3);
  --glow-purple: 0 0 30px rgba(168,85,247,0.3);
  --radius-sm: 12px;
  --radius-md: 18px;
  --radius-lg: 24px;
  --transition: cubic-bezier(0.22, 1, 0.36, 1);
}

*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }

html { scroll-behavior: smooth; scrollbar-width: thin; scrollbar-color: var(--accent-cyan) var(--bg-secondary); }
body { font-family:'Inter',system-ui,sans-serif; background:var(--bg-primary); color:var(--text-primary); overflow-x:hidden; line-height:1.6; }
::-webkit-scrollbar { width:6px; }
::-webkit-scrollbar-track { background:var(--bg-secondary); }
::-webkit-scrollbar-thumb { background:var(--accent-cyan); border-radius:3px; }

/* ── NAV ── */
.nav { position:fixed; top:0; left:0; right:0; z-index:1000; padding:1rem 2rem; display:flex; align-items:center; justify-content:space-between; backdrop-filter:blur(20px) saturate(1.5); background:rgba(6,6,11,0.7); border-bottom:1px solid var(--border-glass); transition:all 0.4s var(--transition); }
.nav.scrolled { padding:0.6rem 2rem; background:rgba(6,6,11,0.92); }
.nav-logo { font-size:1.4rem; font-weight:800; background:linear-gradient(135deg,var(--accent-cyan),var(--accent-purple)); -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text; letter-spacing:-0.5px; }
.nav-links { display:flex; gap:2rem; list-style:none; }
.nav-links a { color:var(--text-secondary); text-decoration:none; font-size:0.85rem; font-weight:500; letter-spacing:0.5px; text-transform:uppercase; transition:color 0.3s, text-shadow 0.3s; position:relative; }
.nav-links a:hover { color:var(--accent-cyan); text-shadow:0 0 20px rgba(0,229,255,0.4); }
.nav-links a::after { content:''; position:absolute; bottom:-4px; left:0; width:0; height:2px; background:var(--accent-cyan); transition:width 0.3s var(--transition); }
.nav-links a:hover::after { width:100%; }
.hamburger { display:none; flex-direction:column; gap:5px; cursor:pointer; z-index:1001; }
.hamburger span { width:24px; height:2px; background:var(--text-primary); transition:all 0.3s; }
.hamburger.active span:nth-child(1) { transform:rotate(45deg) translate(5px,5px); }
.hamburger.active span:nth-child(2) { opacity:0; }
.hamburger.active span:nth-child(3) { transform:rotate(-45deg) translate(5px,-5px); }

/* ── HERO ── */
.hero { min-height:100vh; display:flex; align-items:center; justify-content:center; position:relative; overflow:hidden; padding:6rem 2rem 4rem; }
.hero-bg { position:absolute; inset:0; background:url('assets/hero-bg.png') center/cover no-repeat; opacity:0.35; }
.hero-bg::after { content:''; position:absolute; inset:0; background:radial-gradient(ellipse at 30% 50%,rgba(0,229,255,0.08),transparent 60%),radial-gradient(ellipse at 70% 50%,rgba(168,85,247,0.08),transparent 60%); }
.hero-content { position:relative; z-index:2; text-align:center; max-width:900px; }
.hero-badge { display:inline-flex; align-items:center; gap:0.5rem; padding:0.5rem 1.2rem; border-radius:50px; background:var(--bg-glass); border:1px solid var(--border-glass); backdrop-filter:blur(10px); font-size:0.78rem; font-weight:500; color:var(--accent-cyan); letter-spacing:1px; text-transform:uppercase; margin-bottom:2rem; }
.hero-badge .dot { width:6px; height:6px; border-radius:50%; background:var(--accent-cyan); box-shadow:0 0 10px var(--accent-cyan); animation:pulse-dot 2s infinite; }
@keyframes pulse-dot { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:0.5;transform:scale(1.5)} }

.hero-title { font-size:clamp(2.2rem,5vw,4rem); font-weight:900; line-height:1.1; margin-bottom:1.5rem; letter-spacing:-1.5px; }
.hero-split { display:flex; justify-content:center; gap:2rem; margin:2.5rem 0; flex-wrap:wrap; }
.split-card { flex:1; min-width:260px; max-width:380px; padding:2rem; border-radius:var(--radius-md); backdrop-filter:blur(16px); border:1px solid var(--border-glass); position:relative; overflow:hidden; transition:all 0.5s var(--transition); cursor:default; }
.split-card:hover { transform:translateY(-4px); }
.split-card.design { background:linear-gradient(135deg,rgba(168,85,247,0.12),rgba(236,72,153,0.06)); }
.split-card.design:hover { border-color:rgba(168,85,247,0.3); box-shadow:var(--glow-purple); }
.split-card.code { background:linear-gradient(135deg,rgba(0,229,255,0.12),rgba(34,211,238,0.06)); }
.split-card.code:hover { border-color:rgba(0,229,255,0.3); box-shadow:var(--glow-cyan); }
.split-icon { font-size:2.4rem; margin-bottom:0.8rem; }
.split-label { font-size:1.1rem; font-weight:700; letter-spacing:1px; text-transform:uppercase; }
.split-card.design .split-label, .split-card.design .split-icon { color:var(--accent-purple); }
.split-card.code .split-label, .split-card.code .split-icon { color:var(--accent-cyan); }
.split-sub { font-size:0.8rem; color:var(--text-secondary); margin-top:0.5rem; }
.hero-subtitle { font-size:1rem; color:var(--text-secondary); max-width:600px; margin:0 auto 2.5rem; line-height:1.7; }
.hero-cta { display:inline-flex; align-items:center; gap:0.6rem; padding:0.9rem 2.2rem; border-radius:50px; background:linear-gradient(135deg,var(--accent-cyan),var(--accent-purple)); color:#fff; font-weight:600; font-size:0.9rem; text-decoration:none; transition:all 0.4s var(--transition); box-shadow:0 4px 30px rgba(0,229,255,0.25); border:none; cursor:pointer; }
.hero-cta:hover { transform:translateY(-2px) scale(1.03); box-shadow:0 8px 40px rgba(0,229,255,0.4); }
.scroll-indicator { position:absolute; bottom:2rem; left:50%; transform:translateX(-50%); display:flex; flex-direction:column; align-items:center; gap:0.5rem; color:var(--text-muted); font-size:0.7rem; letter-spacing:2px; text-transform:uppercase; }
.scroll-line { width:1px; height:40px; background:linear-gradient(to bottom,var(--accent-cyan),transparent); animation:scroll-anim 2s infinite; }
@keyframes scroll-anim { 0%{opacity:0;transform:scaleY(0);transform-origin:top} 50%{opacity:1;transform:scaleY(1)} 100%{opacity:0;transform:scaleY(0);transform-origin:bottom} }

/* ── SECTION COMMON ── */
.section { padding:6rem 2rem; max-width:1200px; margin:0 auto; position:relative; }
.section-header { text-align:center; margin-bottom:4rem; }
.section-tag { display:inline-block; font-size:0.72rem; font-weight:600; letter-spacing:2px; text-transform:uppercase; color:var(--accent-cyan); padding:0.4rem 1rem; border-radius:50px; border:1px solid rgba(0,229,255,0.2); background:rgba(0,229,255,0.06); margin-bottom:1rem; }
.section-title { font-size:clamp(1.8rem,3.5vw,2.8rem); font-weight:800; letter-spacing:-1px; margin-bottom:0.8rem; }
.section-title .gradient { background:linear-gradient(135deg,var(--accent-cyan),var(--accent-purple)); -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text; }
.section-desc { color:var(--text-secondary); font-size:0.95rem; max-width:550px; margin:0 auto; }

/* ── BENTO GRID ── */
.bento-grid { display:grid; grid-template-columns:repeat(auto-fit,minmax(320px,1fr)); gap:1.5rem; }
.bento-card { background:var(--bg-card); border:1px solid var(--border-glass); border-radius:var(--radius-lg); padding:0; overflow:hidden; backdrop-filter:blur(12px); transition:all 0.5s var(--transition); position:relative; }
.bento-card::before { content:''; position:absolute; inset:0; border-radius:var(--radius-lg); background:radial-gradient(600px circle at var(--mouse-x,50%) var(--mouse-y,50%),rgba(0,229,255,0.06),transparent 40%); opacity:0; transition:opacity 0.5s; pointer-events:none; z-index:1; }
.bento-card:hover::before { opacity:1; }
.bento-card:hover { transform:translateY(-6px); border-color:rgba(0,229,255,0.15); box-shadow:0 20px 60px rgba(0,0,0,0.4), var(--glow-cyan); }
.bento-card.featured { grid-column:span 2; }
.bento-img { width:100%; height:220px; object-fit:cover; transition:transform 0.6s var(--transition); }
.bento-card:hover .bento-img { transform:scale(1.05); }
.bento-body { padding:1.8rem; position:relative; z-index:2; }
.bento-category { font-size:0.7rem; font-weight:600; letter-spacing:1.5px; text-transform:uppercase; color:var(--accent-cyan); margin-bottom:0.6rem; }
.bento-card-title { font-size:1.3rem; font-weight:700; margin-bottom:0.7rem; letter-spacing:-0.3px; }
.bento-card-desc { color:var(--text-secondary); font-size:0.85rem; line-height:1.7; }
.bento-tags { display:flex; flex-wrap:wrap; gap:0.5rem; margin-top:1rem; }
.bento-tag { font-size:0.68rem; padding:0.3rem 0.7rem; border-radius:50px; background:var(--bg-glass); border:1px solid var(--border-glass); color:var(--text-secondary); font-weight:500; }

/* ── SKILLS ── */
.skills-orbit { display:grid; grid-template-columns:repeat(auto-fit,minmax(140px,1fr)); gap:1rem; margin-top:2rem; }
.skill-node { text-align:center; padding:1.5rem 1rem; border-radius:var(--radius-md); background:var(--bg-card); border:1px solid var(--border-glass); backdrop-filter:blur(10px); transition:all 0.4s var(--transition); cursor:default; }
.skill-node:hover { transform:translateY(-4px) scale(1.04); border-color:rgba(0,229,255,0.2); box-shadow:var(--glow-cyan); }
.skill-icon { font-size:2rem; margin-bottom:0.5rem; display:flex; justify-content:center; align-items:center; height: 2rem; }
.skill-icon img { height: 100%; width: auto; max-width: 40px; object-fit: contain; }
.skill-name { font-size:0.78rem; font-weight:600; letter-spacing:0.5px; text-transform:uppercase; color:var(--text-secondary); }
.skill-bar { width:100%; height:3px; background:rgba(255,255,255,0.06); border-radius:2px; margin-top:0.6rem; overflow:hidden; }
.skill-fill { height:100%; border-radius:2px; background:linear-gradient(90deg,var(--accent-cyan),var(--accent-purple)); transition:width 1.5s var(--transition); width:0; }

/* ── ABOUT ── */
.about-grid { display:grid; grid-template-columns:300px 1fr; gap:3rem; align-items:start; }
.about-avatar { position:relative; }
.about-avatar img { width:100%; border-radius:var(--radius-lg); border:2px solid var(--border-glass); }
.about-avatar::after { content:''; position:absolute; inset:-8px; border-radius:calc(var(--radius-lg) + 4px); border:1px solid rgba(0,229,255,0.15); animation:avatar-glow 3s infinite alternate; pointer-events:none; }
@keyframes avatar-glow { 0%{border-color:rgba(0,229,255,0.1);box-shadow:0 0 20px rgba(0,229,255,0.05)} 100%{border-color:rgba(168,85,247,0.2);box-shadow:0 0 30px rgba(168,85,247,0.1)} }
.about-text h3 { font-size:1.5rem; font-weight:700; margin-bottom:0.3rem; }
.about-role { color:var(--accent-cyan); font-size:0.85rem; font-weight:500; margin-bottom:1.5rem; }
.about-text p { color:var(--text-secondary); font-size:0.9rem; line-height:1.8; margin-bottom:1rem; }
.about-stats { display:flex; gap:2rem; margin-top:1.5rem; padding-top:1.5rem; border-top:1px solid var(--border-glass); }
.stat { text-align:center; }
.stat-num { font-size:1.8rem; font-weight:800; background:linear-gradient(135deg,var(--accent-cyan),var(--accent-purple)); -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text; }
.stat-label { font-size:0.72rem; color:var(--text-muted); text-transform:uppercase; letter-spacing:1px; margin-top:0.2rem; }

/* ── CONTACT / FOOTER ── */
.footer { border-top:1px solid var(--border-glass); padding:3rem 2rem; background:var(--bg-secondary); }
.footer-inner { max-width:1200px; margin:0 auto; display:grid; grid-template-columns:1fr auto 1fr; gap:2rem; align-items:center; }
.footer-brand { font-size:1.2rem; font-weight:700; background:linear-gradient(135deg,var(--accent-cyan),var(--accent-purple)); -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text; }
.footer-brand p { font-size:0.78rem; color:var(--text-muted); margin-top:0.3rem; -webkit-text-fill-color:initial; background:none; }
.footer-social { display:flex; gap:1rem; justify-content:center; }
.social-link { width:42px; height:42px; border-radius:50%; border:1px solid var(--border-glass); background:var(--bg-glass); display:flex; align-items:center; justify-content:center; color:var(--text-secondary); text-decoration:none; font-size:1.1rem; transition:all 0.3s var(--transition); }
.social-link:hover { border-color:var(--accent-cyan); color:var(--accent-cyan); box-shadow:var(--glow-cyan); transform:translateY(-3px); }
.footer-email { text-align:right; }
.footer-email a { color:var(--text-secondary); text-decoration:none; font-size:0.85rem; transition:color 0.3s; }
.footer-email a:hover { color:var(--accent-cyan); }
.footer-bottom { text-align:center; padding-top:2rem; margin-top:2rem; border-top:1px solid var(--border-glass); max-width:1200px; margin-left:auto; margin-right:auto; }
.footer-bottom p { font-size:0.72rem; color:var(--text-muted); }

/* ── PARTICLES ── */
.particles { position:fixed; inset:0; pointer-events:none; z-index:0; }
.particle { position:absolute; width:2px; height:2px; background:var(--accent-cyan); border-radius:50%; opacity:0; animation:float-particle linear infinite; }
@keyframes float-particle { 0%{opacity:0;transform:translateY(100vh)} 10%{opacity:0.6} 90%{opacity:0.6} 100%{opacity:0;transform:translateY(-10vh)} }

/* ── REVEAL ANIMATIONS ── */
.reveal { opacity:0; transform:translateY(40px); transition:opacity 0.8s var(--transition), transform 0.8s var(--transition); }
.reveal.visible { opacity:1; transform:translateY(0); }
.reveal-left { opacity:0; transform:translateX(-40px); transition:opacity 0.8s var(--transition), transform 0.8s var(--transition); }
.reveal-left.visible { opacity:1; transform:translateX(0); }
.reveal-right { opacity:0; transform:translateX(40px); transition:opacity 0.8s var(--transition), transform 0.8s var(--transition); }
.reveal-right.visible { opacity:1; transform:translateX(0); }
.reveal-scale { opacity:0; transform:scale(0.9); transition:opacity 0.8s var(--transition), transform 0.8s var(--transition); }
.reveal-scale.visible { opacity:1; transform:scale(1); }

/* ── STAGGER ── */
.stagger > * { opacity:0; transform:translateY(20px); transition:opacity 0.5s var(--transition), transform 0.5s var(--transition); }
.stagger.visible > *:nth-child(1) { transition-delay:0.05s; }
.stagger.visible > *:nth-child(2) { transition-delay:0.1s; }
.stagger.visible > *:nth-child(3) { transition-delay:0.15s; }
.stagger.visible > *:nth-child(4) { transition-delay:0.2s; }
.stagger.visible > *:nth-child(5) { transition-delay:0.25s; }
.stagger.visible > *:nth-child(6) { transition-delay:0.3s; }
.stagger.visible > *:nth-child(7) { transition-delay:0.35s; }
.stagger.visible > *:nth-child(8) { transition-delay:0.4s; }
.stagger.visible > * { opacity:1; transform:translateY(0); }

/* ── GLOW DIVIDER ── */
.glow-divider { height:1px; background:linear-gradient(90deg,transparent,var(--accent-cyan),var(--accent-purple),transparent); max-width:600px; margin:0 auto; opacity:0.4; }

/* ── RESPONSIVE ── */
@media (max-width:768px) {
  .nav-links { position:fixed; top:0; right:-100%; width:70%; height:100vh; background:rgba(6,6,11,0.96); backdrop-filter:blur(20px); flex-direction:column; justify-content:center; align-items:center; gap:2rem; transition:right 0.4s var(--transition); }
  .nav-links.open { right:0; }
  .hamburger { display:flex; }
  .hero-split { flex-direction:column; align-items:center; }
  .bento-card.featured { grid-column:span 1; }
  .bento-grid { grid-template-columns:1fr; }
  .about-grid { grid-template-columns:1fr; text-align:center; }
  .about-avatar { max-width:220px; margin:0 auto; }
  .about-stats { justify-content:center; }
  .footer-inner { grid-template-columns:1fr; text-align:center; }
  .footer-email { text-align:center; }
  .skills-orbit { grid-template-columns:repeat(auto-fit,minmax(110px,1fr)); }
}
@media (max-width:480px) {
  .hero { padding:5rem 1rem 3rem; }
  .section { padding:4rem 1rem; }
  .hero-title { font-size:1.8rem; }
}

/* ── LIGHTBOX ── */
.lightbox-overlay {
  position: fixed;
  inset: 0;
  background: rgba(6, 6, 11, 0.95);
  backdrop-filter: blur(15px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s var(--transition);
}
.lightbox-overlay.active {
  opacity: 1;
  pointer-events: auto;
}
.lightbox-img {
  max-width: 90%;
  max-height: 85vh;
  border-radius: var(--radius-md);
  box-shadow: 0 20px 50px rgba(0,0,0,0.5), 0 0 40px rgba(0,229,255,0.15);
  border: 1px solid var(--border-glass);
  transform: scale(0.95);
  transition: transform 0.4s var(--transition);
}
.lightbox-overlay.active .lightbox-img {
  transform: scale(1);
}
.lightbox-close {
  position: absolute;
  top: 2rem;
  right: 2rem;
  font-size: 2.5rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: color 0.3s;
}
.lightbox-close:hover {
  color: var(--accent-cyan);
}